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Hi, I just purchased a sun ultra off of ebay, and it came with solaris 2.6, so I formated that and put mandrake corporate server 1.0 on. I currently have 2 other NT computers in my network. They are all connected to a 4 port Linksys router/switch. For some reason the sun server can only access the intranet (ftp, http, telnet, ping, samba, etc all work), but it can't get past the router to the internet. I assigned it as 192.168.1.102, but the router doesn't acknowledge that this computer exists on it's network. help, my machines hate me.
Have you checked weither or not that the new ultra has the correct address for the gateway? /etc/sysconfig/network-scripts/ifcfg-eth0. I think that the Linksys defaults to 192.168.1.1 as the gateway address, standard is 192.168.1.254. If you change it on the router you must reconfig all machines (unless using DHCP). It sounds like your ultra doesn't know where to hop from, first place I would look is to see if you have the correct address for the gateway.
Use the address that you connect to your router to configure it. I own a linksys 8 port and to get the config screen from a browser it is 192.168.1.254. The default is 192.168.1.1. The default password is admin, there is no username. Are you using DHCP for your NT boxes or have you given them static addresses. What type of NIC is in the Ultra? Can you ping your NT boxes?
what address do you use to ping the router? that is your gateway address. If you can ping www.yahoo.com then you are getting out. Do you have any funky port forwarding activated on the Linksys? Try using a different IP on the same subnet and restart the interface.
Next thought...Have you set your ULTRA to be a DMZ host on the router? My brother needs this to connect to Battle.net for Warcraft III.